Answer:
y - 10 = 5(x - 15)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (15, 10) and (x₂, y₂ ) = (16, 15)
m =
=
= 5
Using (a, b) = (15, 10), then
y - 10 = 5(x - 15)
The average of the following is 63.4
(4, 2) ----> ( 2, 1)
(4 - 2, (2 - 1) ----> (2, 1)
That's a vertical -1 and horizontal of -2.
That's the last choice.
Direct variation has the form y=kx. Given a point we can solve for the constant k.
y=kx, when y=9 and x=-3 becomes:
9=-3k
k=-3 so the constant of variation is negative 3
Answer:
She will sell aproximately 13 dresses sold in 1 hour.
Step-by-step explanation: